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Advisories

National Terrorism Advisory System (NTAS)

In 2011, the Department of Homeland Security (DHS) replaced the color-coded alerts of the Homeland Security Advisory System (HSAS) with the National Terrorism Advisory System (NTAS), designed to more effectively communicate information about terrorist threats by providing timely, detailed information to the American public.

It recognizes that Americans all share responsibility for the nation's security, and should always be aware of the heightened risk of terrorist attack in the United States and what they should do.

For more information please visit https://www.dhs.gov/national-terrorism-advisory-system.

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  • Last Modified: September 22, 2022